英语高手，麻烦解答几道题！回答迅速、好的加分！

1 Let's see if we can find out some information about that city.
2 Could you tell me (how long) it (takes)?
3 I know what time the plane leaves.
4 I don't think she is going to say anything.支持决定
5 Mary asked where I was going for a holiday.

1 The teacher (takes joy) to what he has done.
2 I wanted to be artist.My father approved it.
3 Could you tell me (how he repair) the radio without any help?

let's see if we can find out some imformation about the city

Could you tell me how long it takes

I know what time the paln leaves

I don't think she will say anything

Mary askde me where I'm going for a holiday